<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<html>
<head>
<!-- Copyright 1997 The Open Group, All Rights Reserved -->
<title>bcopy</title>
</head><body bgcolor=white>
<center>
<font size=2>
The Single UNIX &reg; Specification, Version 2<br>
Copyright &copy; 1997 The Open Group

</font></center><hr size=2 noshade>
<h4><a name = "tag_000_001_287">&nbsp;</a>NAME</h4><blockquote>
bcopy - memory operations
</blockquote><h4><a name = "tag_000_001_288">&nbsp;</a>SYNOPSIS</h4><blockquote>
<pre><code>

#include &lt;<a href="strings.h.html">strings.h</a>&gt;

void bcopy(const void *<i>s1</i>, void *<i>s2</i>, size_t <i>n</i>);
</code>
</pre>
</blockquote><h4><a name = "tag_000_001_289">&nbsp;</a>DESCRIPTION</h4><blockquote>
The
<i>bcopy()</i>
function copies
<i>n</i>
bytes from the area pointed to by
<i>s1</i>
to the area pointed to by
<i>s2</i>.
<p>
The bytes are copied correctly even if the area pointed to by
<i>s1</i>
overlaps the area pointed to by
<i>s2</i>.
</blockquote><h4><a name = "tag_000_001_290">&nbsp;</a>RETURN VALUE</h4><blockquote>
The
<i>bcopy()</i>
function returns no value.
</blockquote><h4><a name = "tag_000_001_291">&nbsp;</a>ERRORS</h4><blockquote>
No errors are defined.
</blockquote><h4><a name = "tag_000_001_292">&nbsp;</a>EXAMPLES</h4><blockquote>
None.
</blockquote><h4><a name = "tag_000_001_293">&nbsp;</a>APPLICATION USAGE</h4><blockquote>
For portability to implementations conforming to earlier versions of this
specification,
<i><a href="memmove.html">memmove()</a></i>
is preferred over this function.
<p>
The following are approximately equivalent (note the order of the arguments):
<pre>
<code>
bcopy(s1,s2,n) ~= memmove(s2,s1,n)
</code>
</pre>
</blockquote><h4><a name = "tag_000_001_294">&nbsp;</a>FUTURE DIRECTIONS</h4><blockquote>
None.
</blockquote><h4><a name = "tag_000_001_295">&nbsp;</a>SEE ALSO</h4><blockquote>
<i><a href="memmove.html">memmove()</a></i>,
<i><a href="strings.h.html">&lt;strings.h&gt;</a></i>.
</blockquote><hr size=2 noshade>
<center><font size=2>
UNIX &reg; is a registered Trademark of The Open Group.<br>
Copyright &copy; 1997 The Open Group
<br> [ <a href="../index.html">Main Index</a> | <a href="../xshix.html">XSH</a> | <a href="../xcuix.html">XCU</a> | <a href="../xbdix.html">XBD</a> | <a href="../cursesix.html">XCURSES</a> | <a href="../xnsix.html">XNS</a> ]

</font></center><hr size=2 noshade>
</body></html>
